Definition

Noun: A foster-brother is a male who is raised as a brother by the same foster parent(s) or in the same foster family, but who is not biologically related to the other children in that family.

Usage

The term is used to describe the familial relationship created through foster care. It specifies a male sibling bond formed by upbringing rather than by blood or legal adoption. * He grew up with his foster-brother and considers him a true sibling. * Although they are not related by blood, he introduced the man as his foster-brother.

Advanced Usage

• The term is often hyphenated (foster-brother), though the unhyphenated form (foster brother) is also common.
• It can be used in possessive forms (e.g., my foster-brother's home, our foster-brother).

Variants and Related Words

• Foster sister (n.): A female who is raised as a sister by the same foster parent(s).
• Foster sibling (n.): A gender-neutral term for a child raised as a sibling in a foster family.
• Foster child (n.): A child raised by foster parents.
• Foster parent (n.): A person who acts as a parent to a child who is not their own, usually through a formal arrangement.

Synonyms

• Brother by upbringing: A descriptive phrase emphasizing the nature of the relationship.
• There is no perfect single-word synonym. Terms like "ward" or "charge" describe a legal guardianship but do not convey the sibling relationship.

Antonyms

• Biological brother: A brother related by blood.
• Adoptive brother: A brother related through legal adoption.

Noun

1. your foster brother is a male who is not a son of your parents but who is raised by your parents